diff --git a/platform/util/src/com/intellij/openapi/util/AtomicNotNullLazyValue.java b/platform/util/src/com/intellij/openapi/util/AtomicNotNullLazyValue.java
index 82c969fc08fc..71046e2be9f6 100644
--- a/platform/util/src/com/intellij/openapi/util/AtomicNotNullLazyValue.java
+++ b/platform/util/src/com/intellij/openapi/util/AtomicNotNullLazyValue.java
@@ -21,13 +21,10 @@ import org.jetbrains.annotations.NotNull;
 /**
  * @author peter
  */
-public abstract class AtomicNotNullLazyValue<T> {
+public abstract class AtomicNotNullLazyValue<T> extends NotNullLazyValue<T> {
 
   private volatile T myValue;
 
-  @NotNull
-  protected abstract T compute();
-
   @NotNull
   public final T getValue() {
     if (myValue != null) {
diff --git a/platform/util/src/com/intellij/openapi/util/NotNullLazyValue.java b/platform/util/src/com/intellij/openapi/util/NotNullLazyValue.java
index 8b10babd5afe..1225fed05b89 100644
--- a/platform/util/src/com/intellij/openapi/util/NotNullLazyValue.java
+++ b/platform/util/src/com/intellij/openapi/util/NotNullLazyValue.java
@@ -29,7 +29,7 @@ public abstract class NotNullLazyValue<T> {
   protected abstract T compute();
 
   @NotNull
-  public final T getValue() {
+  public T getValue() {
     if (!myComputed) {
       myValue = compute();
       myComputed = true;
diff --git a/platform/util/src/com/intellij/openapi/util/VolatileNotNullLazyValue.java b/platform/util/src/com/intellij/openapi/util/VolatileNotNullLazyValue.java
index f2171358e902..344592047984 100644
--- a/platform/util/src/com/intellij/openapi/util/VolatileNotNullLazyValue.java
+++ b/platform/util/src/com/intellij/openapi/util/VolatileNotNullLazyValue.java
@@ -21,13 +21,10 @@ import org.jetbrains.annotations.NotNull;
 /**
  * @author peter
  */
-public abstract class VolatileNotNullLazyValue<T> {
+public abstract class VolatileNotNullLazyValue<T> extends NotNullLazyValue<T> {
 
   private volatile T myValue;
 
-  @NotNull
-  protected abstract T compute();
-
   @NotNull
   public final T getValue() {
     T value = myValue;